1 yen coin is about the same size as a penny. Also, it is made of aluminum and for a while, it cost 1.5 yen to make 1 yen and the Japanese government was trying to figure a way to get the cost down to manufacture the coins.
Now that we've thrown 'em off the trail, use the form below to get in touch with the people at Engadget. Please fill in all of the required fields because they're required.
Man, that coin is HUGE!
Its actually a dinner plate
1 yen coin is about the same size as a penny. Also, it is made of aluminum and for a while, it cost 1.5 yen to make 1 yen and the Japanese government was trying to figure a way to get the cost down to manufacture the coins.
See here: http://jyopp.com/_extImg/1y-size.jpg
It's not much bigger than a US penny. It's made of aluminum, though, so it's really light, maybe half the weight of a penny.